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Genes direct the development of a growing embryo. But not all genes in a cell are active at any given time. Sometimes a cell's location in the developing embryo determines which genes get turned on and which genes stay inactive. This video segment fr...om NOVA: "Life's Greatest Miracle" explores the developmental process of an embryo beginning just two weeks after fertilization. Closed captioning included. Run time 07:47.[more]

This video segment from NOVA: "The Shape of Things" charts the development of a duck embryo, from its earliest stages just after fertilization, through cell replication and differentiation, to the final stage, emergence from the protection of the egg...shell. Closed captioning included. Run time 02:43.[more]

Ever wonder why you are bigger today than you were when you were 5? The Amoeba Sisters walk you through the steps of mitosis in part II of our cell cycle series. We provide real world examples in a funny context while teaching some mnemonics for reme...mbering the steps! (7:56)[more]

This selection contains a slide show with diagrams showing the stages of mitosis accompanied by a song. The song begins," Mitosis is what happens when a cell divides, when it is done there will be two identical diploids, asexually is how these cells... are reproduced, we'll break it into five parts so it won't confuse.." ( 3:00)[more]

For an organism to grow, rebuild tissues, and reproduce, cells must divide. Every division requires replicating and then evenly dividing the cell's massive jumble of DNA. This video segment, adapted from the Interactive Secret of Life videodisc, foll...ows the stages of mitosis, the systematic process that ensures that daughter cells formed when plant and animal cells divide get equal shares of DNA. Closed captioning included. (01:34)[more]

This is from The Basics of Biology Series. This Eukaryotic Cell Cycle video introduces the cell cycle and briefly describes the process of binary fusion in prokaryotic cells before going on to a detailed look at the eukaryotic cell cycle from the G1..., S and G2 phases of interphase through the prophase, metaphase, anaphase and telophase phases of mitosis. The difference between cytokinesis in animal and plant cells is then illustrated. The video concludes by explaining why an understanding of cellular division is critical to: conquering cancer, cloning organs, and perhaps even reversing aging. (04:19)[more]

This is a sample music Video from Human Biology DVD and CD by Peter Weatherall. An advertisement for the CD appears briefly on screen and then disappears. Students will enjoy this catchy song as they learn about "PPMAT" --prophase, prometaphase, meta...phase, anaphase, and telophase. This is a great resource to help build background knowledge and would work well in conjunction with nonfiction texts on this subject. (2:07)[more]

This video segment from NOVA: "Battle in the War on Cancer: Breast Cancer" describes the role of oncogenes in uncontrolled cancerous growth and depicts the journey of cancer cells from where they originate, into the circulatory system, and then on to... other parts of the body. Closed captioning included. Run time 01:37.[more]

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